Protecting forms with reCAPTCHA uses cookies that fall under "marketing" and gathering site stats using Google Analytics uses cookies that fall under "marketing" and "statistics," making a consent banner or dickover pretty much required.

Are these services necessary for a page to work? Not at all, but many businesses consider them crucial. Unprotected public forms almost immediately start getting spammed by bots, burying real, important communications from potential clients. GA offers insight into what visitors to your site are looking for, which has real business value.

I don't like it any more than you do, but I get why businesses would choose to use these. On their end, at least with reCAPTCHA, they're just trying to protect themselves from the complete shitshow that the modern web has become.