Your comment's rhetoric is just as toxic as the comment you're replying to.

I'm about as left-wing as one can get on lots of issues and think Trump is a terrible president, but pulling half of our troops out of Afghanistan is not only a continuation of the slow-drip downscaling of US military presence in the country that we saw under Obama (where ~91,600 troops were pulled out over a ~5-year period), it also appears to have more recent planning done to accommodate the withdrawal.

The US has been in talks with the Taliban and we've been working with the Afghan government for more than a decade now--this isn't even remotely comparable to the abrupt withdrawal from Syria or Iraq. I'm fairly confident in saying it's a good decision on Trump's behalf, even if I think it's one of very few good decisions.