I know they likely weren't trying to win left-wing people over specifically, I was just trying to explain why centrists are generally disliked by left-wing folks. Them being able to entertain voting for fascists and for generally misery-inducing policies is what makes left-wing people see them as fundamentally not that different from right-wing people. If someone's so strongly against abortion that they're willing to vote for a fascist (or at least seriously consider it) then, for most left-wing people, they're not just trying to achieve a similar positive goal through different methods, but rather they're actively a bad person.

That's not to say if you're left-wing you have to blanket disagree with every single right-wing policy - and I do genuinely think everyone should consider each individual issue on their own merits rather than just adopting the party line - but the overall right-wing package is just so awful that "enlightened" centrists being willing to entertain it are awful by extension.

I do agree with you about left-wing policies being toothless, and I think a lot of left-wingers are lacking in pragmatism - particularly when it comes to achieving their long-term goals and the sacrifices they might need to make to reach that point. Far too many left-wingers are willing to make perfect the enemy of good and end up suffering for it.

Of course, it's difficult when the right-wing are so good at rallying together and unifying different factions in order to get power. A lot of the right-wing's ideology is simply "get into power". Meanwhile, the left-wing is a mish-mash group filled with differing ideologies and factions that unite more out of necessity in order to be politically relevant and competitive with the right-wing than because they necessarily want to be a unified group. I'm not from the US, but I'll use the US Democratic party as an example: the party's overall stance is somewhat centre-right by most countries' standards, but it's also the party die-hard left-wingers have to vote for and support if they want any kind of representation at all. It makes it very difficult for genuine left-wing policies to get pushed through.

In the current political climate, left-wing parties tend to rely on swing voters to get into power, too. So not only do they have to try to appeal to all the varying ideologies of the people who make up and consistently support the party, they also have to try to appeal to the moderates. "Radical" left-wing policies would lose the support of moderates and swing voters, and therefore lose the party their political power. Sticking with the US example: the US' Overton window is so far to the right that real-world left-wing solutions to problems would probably ensure the Democrats don't regain power for years. There needs to be a more gradual shift to the left and a de-escalation before any real changes and solutions can happen.