It basically asserts that the constitution and all amendments must have been written by psychics who could predict every situation that would arise in the future, forever.
Not really. The constitution is a living document and was meant to grow with the times.
The problem is that it’s next to impossible to add amendments to the constitution now due to how divided the nation is. This means that in order for abortion to receive protection under the constitution, it would need to be tied to an existing amendment that was not drafted with abortion in mind.
That’s why it’s so crucial to make arguments like “abortion is bodily autonomy” rather than “abortion is a guaranteed right under the xth amendment.”