The one thing that can guarantee that Evans will turn on you is if you do not agree with him all the time on all matters, no matter how minor or insignificant. If he cannot trust that you will support him unconditionally, he will begin to seek out reasons to question your character or motivations. If someone disagrees with him on something, he will seek opportunities to attack, using the disagreement as the excuse.
Regardless of how minor the issue is, he will go to war if you do not immediately back down. This is why it did not take long for his support to crumble after the livestream video. People rightly wanted to condemn his actions, but that meant becoming his enemy. Who is left that supports him anymore? And how long before they decide it's not worth it to navigate that minefield? And will they be added to the litigation?