well if you're dealing with a corporate entity the size of amazon and their weird bot/shill twitter army that's pretty much the only sane response.
Do you seriously think if you chat nicely with these PR people they're going to hook you up with someone who matters and amazon is going to have a nice chat about their anti-union practises with you over a cup of tea? Makes about as much sense as telling hong kongers to be friendly to the people's liberation army
Calling on workers to fight amazon is the only reasonable thing to do and if these combatative tweets bring attention to their PR campaigns than that's a plus