Usually, there are two types of people who don't have skills, one works in McDonalds or in Aldi and another one works as social media influencer but let me tell you that social media influencers are earning way more than any skilled workers. Social media influencers, even those who small number of IG followers, are paid very decently. And OF? Lots of girls do this, they earn more than NBA players. This world is becoming a terrible place because skilled and hard working people are living from paycheck to paycheck (most of the time) while unskilled and stupid people are living a very luxurious lifestyle.
That's what I like to call junk jobs. These people have no skills and they don't contribute to society with what they do either. And for most of them this is their job, not like something they do on the side to earn an additional buck. That is destroying the economy as well. Worse part is that in some countries like mine they earn millions and don't pay any taxes 
By the way, another reason why I wouldn't judge them is that not everyone has the possibility to master some skills. For example, I grew up in a poor family where no family member was paying attention to what I wanted to do in life, instead, they were forcing me to do what they loved, not what I loved. I had to leave the family and do things on my own, I went through nightmares to achieve what I achieved, sacrificed best years of my life, when everyone had fun, I had only work, since my teen ages. So, some people who are into unskilled jobs, are people who were like me but gave up. It's hard to not give up.
I don't understand what you mean when you say that they are destroying economy, can you explain?