Don't play semantic games. It is a sure sign of somebody who can't support the reasonableness of their argument.
I read this somewhere: If a semantic game is to say things that have no bearing on the discussion in order to score points then what is accusing someone of playing semantic games? lol.
I will explain my thoughts with an illustration.
Imagine there is a man (Jones) with a small factory. All Jones ever wish to do is to build small robots that go out and kill people in the neighborhood. He spends every day doing this... he writes about how he is doing it... he explains why it is a good and useful thing to do.
He is not very good at it. Most of the robots he build just waddle out and do nothing... but once in a while one of them go BOOM in a shopping center, a playground, a concert....
This go on year after years... everyone know Jones is doing it and are pissed off but they say to each other: My God, another playground was blown up by one of Jones little robots. If only there was something we could do but alas, all Jones does is assemble small robots in his own privacy. Let's remind ourselves that not all his robots work as intended and be happy for that.
You are smart so you probably understand my point but let me explain.
There are people who preach death to infidels.. jews... that people should really do this. Most of the people who hear this do not kill other humans but some do. The people are programming other people in a cult-like fashion for murder. They are rarely successful but sometimes they succeed. We all know this. Yet people say: Oh what a tragedy, if only we could do something, but alas he is only talking, having his thoughts, and sometimes sharing them, and we can't arrest him for thought-crimes. Let us remind ourselves he does not always succeed!
You see my point?
Thoughts are contagious.. some are very dangerous.
My answer: Bulldoze Jones bombshop & make sure he never get his hands on another robot again.