Fraud filters is about GA not expecting such a large number of events from a single IP. You’d be sending all your visitors’ events from that single IP - at some point GA will ignore your traffic or give you a captcha (effectively blocking the analytics because it’s not designed to handle the captcha response).

Then just run an old school analysis on your server logs. Some 20 years ago, I was using webalyzer, it probably still exists and I am sure that are alternatives.

Putting google into the mix, through a proxy or not, will definitely skew your results.