How can I get approved for Adsense for some site content being reposts?

I have a well-established six year old website where I publish and curate content on personal growth and health and while I've written dozens of original articles and have had guest writers as well, in order to keep getting new content on my site, I republish articles from other sites in my niche that I also have seen republished on other sites as well.

I went through setting up an Adsense account but I was told I need to remove the non-original content first before finishing validation but it would be quite a bit of content and I'm concerned that my traffic will go down, even though the content with the most traffic to my site is the original content.

Is it worth just removing all of that non-original content and hoping that Adsense will allow me to use their PPC service or is there a workaround? From what I understand, Adsense doesnt care if you republish content if you have a lot of traffic which seems unfair. I have around 5K unique visitors a month.

Anyone have a good solution to this?

People do not like being tracked by google for Google ads. Bad days for adsense websites.