Trump and his loyal posters seek to use Antifa (who represent a small fraction of the protesters yet who are doing 90% of the criminal mischief) to discredit and silence the 95% of the protesters who are civil and well intentioned.
Trumpsters lazily use the “one size fits all” approach and lump all protesters into the same bucket.
See jakers, Ned, Baron et al.
It is as disingenuous as saying that all police officers are racist assholes.