I'll focus on redpill guys, but you could ask this question about any guy.

Redpillers (of /theredpill) say that to attract women you need to be alpha (an attractive, popular successful guy). To be alpha (since their readerbase by default aren't) they are told to self improve; everyday (including Sundays).

If they're doing it for themselves or doing it to accomplish some goal they have; that's different. But something tells me the majority of the self improvement advice given is all about getting girls/laid.

But advice given on /theredpill is often demonstrably useless in attracting women. Getting fit/healthy is fine but bodybuilding is useless as the majority of bodybuilders aren't womanisers in any way. Even obsession about money/career/success is not actually helpful. Again if you're doing it for yourself sure, but why are there men who are successful/rich/have good careers who still don't do well in dating. To me, the "women upmost desire successful/competent men" is a meme. Although it depends what you define as success; I'm defining success based on career/financial accomplishments (which the world glorifies). If successful men were most attractive to women where are all the Jeff Bezos and Elon Musk worshippers at? Zuck? Even Donald Trump, the most powerful man in the world (on paper, not in reality).

Sure like many redditers with their revenge of the nerds fantasy, they think their engineering job will make them a stud. But they still do average (or worse) with attracting women. Guys with no career prospects (who you'd define as losers) can sometimes be the biggest womanisers. That unemployed good looking party boy that sells/does ecstasy actually has more SMV than an investment banker that banks tonnes of money but still isn't attractive to women.

This post ended up a little bit rambled. But my point is that a lot of manosphere self improvement advice is actually useless if your entire goal is getting laid. If it isn't, you do you.