Actors can be attention-seeking non-conformists, news at 11. LGBT people go to LGBT events and wave LGBT flags at those events, news at 12.
No one says you need to share her views. But Yotei doesn't have anything to do with her views one way or another, until we are given some information otherwise. Some people are in fact getting into really dumb tribalistic territory, no different from the extremists who have meltdowns whenever Chris Pratt is cast in something because he goes to church.
And yes, it's perfectly reasonable to block people on Twitter, too, for any or no reason.
We're not going to do any sort of harassment campaign here or have meltdowns because actors are being actors.