The biggest lie is this nonsense about "double taxation," ie taxing money that's already been taxed is somehow unfair. So stupid. Capital gains tax shouldn't exist. It should all be one income tax. You can carve out discounts or exemptions for things like sale of PPOR, sale of family business up to a certain point, if you want.
I don't see it that way. When you invest you risk the capital. You might get a return, you might not and therefore the taxation rules should reflect that. The situation as a worker is different. The only risk you take is that you might select a bad company.
So... you take a loss on your taxes, probably spreading it out in some way so you don't pay taxes for a few years, if it's a serious enough loss. Right? Why does the rate need to be different?