And Patriot Front isn't violent, the way Antifa is. And i've seen actual zionist feds on the Donald constantly claim that Patriot Front are feds which makes me think they probably are not. And being uniformed isn't a sign that they are feds. The Brown shirts of Germany were not feds of the Weimar government. Japan's Shield society movement (Tatenokai ) were not feds.
But regardless , if you don't trust them you don't have to support them, but going around screaming that they are feds is counterproductive and scares people away from making any real action or active movement in fear that they would be called "feds".
Actually the right wing would be better served if they said Antifa were feds instead , to delegitimize them and make it be known that Antifa is not an organic movement and that its the government that is pushing these inorganic leftist movements and that they are not grassroots. . Right wingers should try to dox Antifa which for some reason i haven't seen right wingers call for but instead i'm seeing right wingers call for doxing Patriot Front . Which seems ridiculous to me.
You're operating under the assumption that the left thinks there's anything wrong with the optics of Antifa.
Once and a while someone does blame "right wing instigators." But note that they don't mean the whole group is feds. They mean they think a secret fascist in their midst threw one brick and the rest of the mob were poor innocent victims who couldn't help but follow along.