2) Ignoring GamerGate is basically tacit approval. It's a banner used to harass people over the flimsiest and stupidest of reasons.
You can stick your fingers in your ears and ignore it if you want. That's kind of a shitty move but ultimately your prerogative. But to say that nobody should talk about it because you don't want to hear about it? Who says that's your decision to make?
Edit for replies:
Ignoring harassment of others doesn't make it go away. In fact all it does is allow harassment to go unchallenged.
I don't expect people to go actively confront people on whether they think gamergate is dumb or not, but if your position is "i don't want to talk about it" or "i don't know, maybe both sides have good points" then you need to reexamine what you think living together what other human beings means.
Gamergate is a fucking stupid reason to harass anybody. Anybody who is neutral or pro-gamergate needs to contend with that fact.