One of the key problems in dealing with SJW's is that there is no neutral ground with them, your position is either explicitly against them or the door is open for them to infiltrate and turn the group. Trying to be value neutral and simply not participating doesn't work.
You can't disagree with them on one or a few points, their brand of criticism is sweeping, either you accept the whole thing or you reject the whole thing. Either for us or against us. You can't say for instance that you reject their vision of enforced diversity, if you do as far as they are concerned you now hate gays, PoC, kittens and puppies. Conversely if you acquiesce on a single issue then the foothold is taken and they will continue to push until you are fully with the program.
The mistake is also in assuming a sense of fair play, and "if I leave them alone they will leave me alone". They are always willing to act underhandedly because they feel morally justified, they are also constantly in search of a crusade. Leaving them alone isn't enough, if they feel you are out of line then they are on the attack.
This leaves a problem where the only real solution is to turn the tables and be just as aggressive, however most aren't willing to do that. To defeat them groups that are as radically exclusionary of them as they are of outsiders must be formed, publishers, printers, etc must be as viciously harangued for "platforming" them etc.
One of Conquests laws is relevant here, Any organization or group that isn't explicitly right wing will eventually be co-opted by the left.
It's a hell of a conundrum.