If all natural-born citizens has to go through the naturalization process before getting the right to vote, trump would never have been elected.
Not just because they don't know the 100 (I think they changed it to 120 now?) questions, but also because they would not pass the:
"Have you ever been a member of
any totalitarian party?
Have you ever been a member of a
terrorist organization?
Have you ever advocated the
overthrow of any government by
force or violence?
Have you ever persecuted any
person because of race, religion,
national origin, or political opinion?" Questions
(Fun fact: They can revoke your citizenship after the fact if they catch you lying, or if you do any "terrorist" activity within 5 years of naturalization. Jan 6 riotor types would never pass this. As a naturalized citizen, I'm kinda dreading this since last November)