Take it as, "I control the door to a bank vault, if I allow robbers in, I will be a complice to a crime as the crime couldn't be commited without your help". Negligence or direct intent, it can be costly. Assess your 3rd party sources very carefully, I have already removed GA and replaced them with local analytics (https://matomo.org/) as I can't trust them, they are trying to downplay GDPR and there is already a complaint written against them (https://noyb.eu not for GA though), and I have read the PDFs, they are right and quite objectively, they are guilty. I dont want to be in a same boat with them.