it is definately a problem, but first, you surely exadurated by saying the only thing Jewish is the words. Usually the tune, and some of the lead insroments are not used as in Goyishe music. Yes the beat, base and intos etc. do get downgraded.
Music has been changing and changing, thats the natur of art. Your Sforim design and Teffilin Zekle don’t either look like it’s 100 yrs old, and neither did that one look like 100 yrs before that. There just has to be a distinctive Yiddishe taste to the tune and leads, but the background is bound to change. Music is an expresion of the soul, and so is the decore of your living room. Certen sounds are the languege tools of expression today.
If you are talking about certen specific artists who are obviously trying to copy the sound streight from the radio, I am also very worried about that, and it is out duty to tell our children very strongly that this is not a yiddishe sound.