If you can sneak backdoors, removing one side, would not make the other side, even if you consider the good one, be even more able to sneak one too. In election tables, what guarantees transparency is everyone represented at the table, not banning one side.
Isn’t most of Linux open source?
All of it is. But its still possible to sneak backdoors into Foss software (though magnitudes harder). See xz.
If you can sneak backdoors, removing one side, would not make the other side, even if you consider the good one, be even more able to sneak one too. In election tables, what guarantees transparency is everyone represented at the table, not banning one side.