is class struggles still usefull as a concept ?

Class struggle can take different forms, direct violence like wars, indirect violence as poverty's death, threat of losing a job or pulling an important ideology. The struggle can be open , as with a lockout aimed at destroying a labor union, or hidden, as with an informal showdown in production protesting low wages or unfair labor practices.

But class struggle happened because of humans themselves. For sure there have to be some differences between classes in a country. There will be always the power and the citizens ,but as we have been seeing for a long time in some countries the differences these classes became huge gaps and we are finding the classes struggle excluding the ( POWER) group.

If we look at today's power , we can see the influence of money on the power , people are blinded by money , we can't tell whether the class  is useful or not. But because of what power is doing and all the upper classes , I will say it is not useful at all. The powerful people abused the classes differences that made the huge gaps between the rich and the poor.