A few counter-arguments:
*- The "dissident left" as I call them (or "woke right" as James Lindsay calls them) believes in secure borders precisely because they want universal welfare, and know that system is unsustainable without a stable population and labour force. Dissident leftists tend to agree with libertarians on everything except that and business regulations, and are split on gun regulations.
** - Good luck trying to convince partisan Democrats and even disaffected "progressives" that bit is even true. Even according to the ones who acknowledge the Dems' warmongering, they will insist that the Republicans are worse. As before, only dissident leftists are willing to acknowledge that the Republicans are no longer the party of Shrub, case in point: Jimmy Dore.
Bullet Point 3 - Private ownership of the means of production is inherently exploitative according to people so far to the left that they see the Dems as a right-wing party. My former history professor and favourite punching bag is one such person, and he's a HUGE fan of Mill, despite also being one of those twats who has repeatedly advocated for mandatory community service.

You already know where I stand on these issues, but what would you say to the people in these specific categories?
Oh, and follow-up: could you at least create a Substack profile so that I can add you as an author if you let me use portions of your writing in my own articles?