Voter suppression is suppressing voters one way or the other. Your idea of restricting by birth rights is of course another form of it.
It's fascinating to look at that proposition for a country that mostly got rid of its indigenous population.
Words have meaning. Setting qualifications is different than “suppression.” The former determines who are legitimate voters. The latter is an effort to keep legitimate voters from voting. Conflating legitimate qualification rules with “suppression” is fuzzy thinking in service of propaganda.
Restricting by birth right is simply an extension of the universal practice of restricting voting by citizenship. Every democracy decides who has sufficient stake in and familiarity with the society to be able to vote.
> Words have meaning
Well, yes. At this point we could as well get back to Wikipedia for at least a common interpretation of the concept:
> The disenfranchisement of voters due to age, residence, citizenship, or criminal record are among the more recent examples of ways that elections can be subverted by changing who is allowed to vote.
https://en.m.wikipedia.org/wiki/Voter_suppression
> universal practice of restricting voting by citizenship
Citizenship restriction is not universal BTW, and going from a civil status (can be acquired) to a physical one is an incredibly huge leap that is nothing simple.
Look, if you insist on using this term like this, it will make conversation and mutual understanding more difficult. If banning toddlers from voting is "voter suppression", then now we must distinguish between "good voter suppression", like banning votes from toddlers, and "bad voter suppression", like for example tactics to mendaciously make it harder to vote for people who are otherwise eligible.
The result is that "voter suppression" is no longer understood to be a bad thing. You lose the ability to drop this phrase and expect people to pick up that the implication is negative. For example, you said above:
> Democracy is not 2 parties doing voter suppression and gerrymandering as a filter to pass the result to an electoral college.
If "voter suppression" as a term now include things that are universally understood as good, like banning toddlers from voting, this sounds incoherent. Democracy very much is about doing voter suppression, and everybody agrees it to be a good thing!
If you don't like how it sounds, you need to stop including good and proper things under the "voter suppression" label. Rayiner tried to help you with that, by distinguishing between mendacious voter suppression, and good and proper setting of voter qualifications, but you rejected that.