As MSL said, who is really extremely well versed on Philosophy, Buddhism had good sides, as well as bad sides however.
Yeah the bad sides of it are:
1. The too extreme perception of human's desire so that Buddhists 'lie down and rot' because they think desire is totally negative and needs to be eliminated, but actually desire is a two-side sword. When you control it well, desire is your motivation of developments and the source of your happinesses. We should admit desire is one of human's natures and we should not go extreme about it. The really corret move is to admit it and not perceive it negatively but objectively and control it well.
2. Ingraining a Buddhist with some unproven things like 'Emptiness'.
3. 'Overtamizing' Buddhists, because in the perception of Buddhism, for ex, even if a guy punchs you at your face, which derives from his 'hateful heart', and you punch back, you will create bad karma thus you will get the 'justice', so Buddhists are excessively 'tamized' because they are afraid of the justices including getting to the hell after death. I remember Scythians even left Virūḍhaka genociding themselves because they thought if they fought back, they would create bad karma. It's extremely hilarious to common ppl of course, but to Buddhists, you can't fight back otherwise you are 'indulging' yourself.
4. Changing a Buddhist's lifestyle into one that mainly focuses on the 'practices' so that he or she can't 'strive for life'. No need to explain. When you spend like 95% of your time on the 'practices', how can you still 'strive for life'?
5. Being made use of as a tool of robbing people's money. This is one of the bad sides of a religion actually, not just Buddhism.
I was really lucky to encounter with MSL who elucidated to me the bad sides of Buddhism and some important things about Philosophy, otherwise I would've been still practicing with 95% of my time per day lol.