Generally I find many these frameworks will make some complicated things simple, but the cost is some things that were once simple are now complicated. They can be great if you just need the things they simplify - or in other words can stick to what they were intended for, but my favorite way of keeping things simple is to avoid using complicated and heavy frameworks.
If you spend a lot of time on a single framework, you will transcend and become a sort of frontend diety, growing multiple extra limbs allowing you to type in CSS classes faster than any mere mortal
So what is the point of these frameworks if they make it harder?
Generally I find many these frameworks will make some complicated things simple, but the cost is some things that were once simple are now complicated. They can be great if you just need the things they simplify - or in other words can stick to what they were intended for, but my favorite way of keeping things simple is to avoid using complicated and heavy frameworks.
If you spend a lot of time on a single framework, you will transcend and become a sort of frontend diety, growing multiple extra limbs allowing you to type in CSS classes faster than any mere mortal
Until everyone moves over to the next thing and you start from 0 again. Web dev is a nightmare.