While I am not intending to be insulting here, it is incumbent on you to ‘make your mark’ in a consistent and identifiable way.
It is the point of a signature, and even foreign illiterates have been able to do this for centuries.
We are all entitled to our opinions, including me and you
This is 21st century and technology has advanced rapidly in this century. There are better and more fool-proof methods easily available now over centuries old “signatures”. Have you done research on how many signatures get forged? Finger prints are infinitely more difficult to forge, for example and the technology is there to use a simple thumb print to confirm voter identity.