You mean the consent like not going on the website in the first place? And if all GDPR was just a bunch of consent forms it wouldn't even be a problem.
GDPR is bad/onerous for the following reasons
- right to have access to the information that is being stored on you
- right to be forgotten
- right to view a web page without being shown ads
If GDPR was only asking for consent + banning the sale of information to 3rd parties it would hardly have had the chilling effect it is currently having.