Hace we considered that perhaps certain socially normative messages such as these also reinforce a Capitalist agenda: eg. Keeping leftists from becoming interesting in, and owning/running their own businesses?
I feel plenty of leftists have probably stayed out of business in order to avoid being exploiters... But I'm not entirely sure that's how things work, or the best outcome possible.
What I'm saying is; culture under Capitalism gets us to recreate messages that reinforce the status quo of base superstructure relations... We do so without knowing, and often without questioning it.
So not to be that guy (but in this case I'm totally being that guy); I'm just asking questions bro!
It's harder to advocate for destroying things one possesses.
If we want to end Capitalism, not being invested in it is probably more helpful than not.
That said, I have met a fair few people that would fall under the label of "Leftist" that have had small businesses. Although not the hyper-radical left.
Which perhaps might also speak to another division, reformists vs revolutionaries. Eg those who want to bargin to make gradual improvements in conduct/practices or believe such is possible vs those who think something more drastic or conclusive is necessary as far as changing everything.