This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
I would be short and concise, and just for this person add a sprinkle of personal responsibility:
Trump taxed you because you bought something un-American.
The extension:-
This costs more because you have to pay off Trump as it contains something un-American.