If that means people who are dedicated to the cause of 14 words than yes, if that means freaks who lose their shit and act irrationally, than it will self-sabotage the movement.
Alt-right should openly publicly single out Antifa as terrorist violent organization and wherever some counter-demonstrators define themselves as Antifa , wait for the fist rock throwed at our people,etc and beat the shit out of whole Antifa group, otherwise the rallies should be peacefull as possible.
It's about chosing battles and enemies wisely.
And Alt-Right must be prepared for acts of civil disobedience against the system (blocking removal of statues, etc) through prepared events and even flash mob events.
Alt-Right must define themselves as Civil Rights movement for White people (and not as some Confederacy/3rd Reich re-enactors) to succeed.