How to get rid of DMCA complaints about a music site?

Question

Google

I have a site similar to last.fm
It is not possible to download tracks on the site.
It contains only tracks from YouTube . Which are loaded via iframe.
That is, everything is legal .
Naturally, the site has Google ads. (There were no problems with the installation)

In general, the previous version of the site was already flooded with dmca requests once. When they were 30% of the total number of pages on the site and the site was removed from the index.

Now I moved to another domain (they removed all the pages that I complained about), and the same problems started again. We tried to respond to complaints but the answer is always negative.("At this time, Google has decided not to take action based on our policies concerning content removal and reinstatement in regard to the URLs below:")

There have been a lot of attempts to write in the feedback form in different ways. Here is one example.

Hello!
All information on the site https://site.me/ is taken from open sources and from the service - www.youtube.com

The link below IS A PERMISSION FOR USE
https://developers.google.com/youtube/terms/ api-se...

Track cannot be downloaded
Listening to a track is only possible through the YOUTUBE service through an iframe (This is completely legal).

Please review the URL and recover deleted content from our site on Google!

You need to complain about the video on youtube.
If this video is yours, you can prevent embedding videos on sites via iframes.

Please tell me the answers to the questions:
Have I really violated someone's rights?
Is it legal to post other people's Youtube music videos on your site?
And most importantly:
If I have not violated anything, what should I write so that the pages of the site are restored in the search and restrictions are removed from them?

We are ready to do everything to remove dmca complaints from us.
Even remove pages from the site, but we have already tried to do this and this will not help the cause.

Answer 1

well, in general, yes, there is a violation