In our current capitalist economy, most people spend majority of their life just working and saving for their retirements.

That's not something I disagree with. I do that. But via traditional means (I generate something of value and get wealth in return), not solely by using my wealth to generate more wealth.

I hate bitcoin because you can only participate (and become more wealthy) if you're already fortunate/privileged enough to be wealthy. It's just another thing that helps increase the divide between rich and poor.

> In our current capitalist economy

Hasn't this always been the case, for all of humanity's existence?

"Cursed is the ground because of you; through painful toil you will eat from it"

Everything bad is because of [buzzword that represents everything bad about the current social order].

Do lefties have a "not real capitalism" meme like the "not real communism" meme for righties?

It is absolutely not - where did I say it was? But you do invest your money in stocks or bonds don't you? Why couldn't you have invested 1% of your capital in BTC in 2018? Just treat it as one of those investments which went well?

Why would I, for any other reason than to expand my wealth?