Indeed they don't, as you've proved.
So we now we count people who don't vote? Johnson got little more and on that measure, we'd have never left the EU, perhaps you've a point!
Don't vote = you don't count.
As i said, it was the Tories who have slashed CGT thresholds and hiked Corp tax to a level only Corbyn planned to do, plus froze tax TH's, a decision that affects the lower paid the most.
Yet its Labour who are the party of high taxes!
As for CGT, of course you still would, you'll still be making money plus not all investments are particularly risky, gains on property? trackers? of course that should attract CGT at the sellers marginal rate.
The higher tax rate applies to gains, not losses.