Then don't call them social fascists, call them what they are-capitalists. Capitalism is enemy of the proletariat and we should be clear about that rather than giving socdems a chance to go "well see we're personally anti-fascist in this or that way". If the end of this road is communism or barbarism, why attack them with "fascism", allowing some capitalists that would lead us to barbarity to pretend there's a middle ground? Unless you mean to extend fascism to everything, in which case you should just use capitalist because that's what those that oppose communism already are.
Then don't call them social fascists, call them what they are-capitalists. Capitalism is enemy of the proletariat and we should be clear about that rather than giving socdems a chance to go "well see we're personally anti-fascist in this or that way". If the end of this road is communism or barbarism, why attack them with "fascism", allowing some capitalists that would lead us to barbarity to pretend there's a middle ground? Unless you mean to extend fascism to everything, in which case you should just use capitalist because that's what those that oppose communism already are.