You only need to look at the many BlueSky posts here to see that many people view BlueSky as an attack on federation. It's only natural to see people on Mastodon shitting on BlueSky for taking what they see as their success away from them.

I think he is saying nobody is sending him threats and calling him slurs because he isn't a minority, but still acknowledges the problem of others.

because bluesky has had a collective struggle session recently with the twitter posters migrating over and realising they're not actually being welcomed in open arms, usually when they out themselves with shit like genocide denial and transphobia.