most of them aren't really at fault. they are just poor newcomers who entered a big market and were suddenly bombarded by a huge wave of advertisement which were promising them riches beyond their wildest dreams so they ended up buying a ton of useless tokens which have been continuously losing value
That's why knowledge is power and without knowledge on what you are doing you will easily get rekt and that what happens to those newbies who entered this industry with pure greed in their hearts and taken the bait of multiple folds of profit promises by some useless projects. I guess there is nothing to blame but themselves because they didn't do proper research and never acquire knowledge about what they are doing in this very wild industry of Crypto Currency.