The "his angels" issue: Please note this is a moot point since "his angels" in this context are the angels who are LOYAL to Jesus. Jesus technically created all angels, including Satan yet in Revelation it is Michael and "his angels" against Satan and "his angels". Thus the specific act of creation is not the reference here. "His angels" are thus simply the angels belonging to him that are on "his side" in constrast to the angels joining Satan and thus becoming Satan's angels.
The Trinity: Also, the Bible does not comdemn the Trinity, nor do the Apostles warn against it as a pagan teaching. So BOTH sides can be, and are often wrong about this central teaching.
The above statement would be a matter of opinion since condemnation of the trinity is implied via the 666-Beast of Revelation that some anointed ones assign to Christendom. This beast's name and number help to identify it. It comes "out of the sea" which represents Christendom in contrast to the Lamb-dragon beast that "comes out of the earth" representing the apostate GB of Jehovah's witnesses, the earth representing some aspect of Jehovah's own recognized organization. The 666 represents Christendom's focus on the trinity doctrine but since the beast is condemned and this number is emphasized it would imply condemnation of the trinity doctrine as a false doctrine. Thus it could not be said in a comprehensive manner that the Bible does not condemn the trinity doctrine if you use this application. The formula for converting the 666 number to a name means subsituting the numbers with letters via some combination. You can do it various ways, of course, but if you use the 666 as a sum to create 18, then add the number of the digits, 3, you get 21. If you substitute the 21st letter in the Hebrew alphabet for hte three sixes you get: SSS for the name. Not that significant in meaning. But if you presume the 666 is a reference to the trinity and apply the trinity formula, that three equals one; since all the digits are the same, you could say that there is just one digit instead of three in the 666. Thus to the sum of the digits we don't add three but one to arrive at 19. When we subsitute the 19th letter of the Jewish alphabet, using the "trinity" Psalm of 111 (which has all the alphabet) then we get: QQQ which also doesn't mean much. But the alternative reference to Qoph is Koph which is a modern reference of significance which is: KKK. We then need only apply the significance of that implied reference in modern times to Christendom. KKK obviously is a reference to white supremacist ideas among Caucasians. Thus one would ask could Christendom in general be characterized as a white supremacist organization, which of course, implies it would be an organization primarily of Europeans. This is applicable since if you were to try to identify this beast in the world and you understood it was an organization which a high population of whites, then of course, as a major religious group, that would be one factor that would identify Christendom, versus Budhists or others, etc. Of course, the Euro-Christian society is well known to be racist, after all, the "greatest men of our time" are considered to be Abraham Lincoln, Martin Luther King, Jr. and Ghandi, maybe even now Mandela. The one thing all of them have in common is "peaceably" fighting against white supremacist concepts in the European-Western culture. In general, while the Western culture made vast advances in the world, when it went to non-white cultures it destroyed their religions establishing Christianity for them, but maintained distinction socially for non-whites. Thus the bad rap for Christendom being white as well as Eurocentric is certainly well deserved if not well-documented. But case in point, the trinity doctrine formula is part of all that and thus that doctrine is condemned in context per scripture since Christendom is condemned. Of note, the Lamb-dragon beast that comes out of the earth, that is as well apostate, representing the apostasy of the GB of Jehovah's witnesses does not display the "666" number. That's the reference to the 666-Beast being thus a predominantly white organization believing the trinity which I think you could generally say that describes Christendom.
If you were able to follow that, then the trinity doctrine is acknowledge and condemned by the Bible, at least per the viewpoint of some.
JC