Akuperma,
Your suggestion is against Torah.
Who gave you the right to throw away millions of Hashem’s children, when the Gemara tells us אע”פ שחטא ישראל הוא, and בין כך ובין כך בני הם (which is even referring to a Yid who is משומד לעבודה זרה ר”ל – Rashba Shu”t 1:194)?
How much more so when we are talking about a person who knows nothing about his own religion (due to lack of education), all he knows is that his nation is the most persecuted in the entire world, yet he show great mesiras nefesh by identifying himself as Jewish, despite not knowing what it means practically.
In a way, the essential connection that we all have to Hashem is even more visible on such a person than a frum Yid who received a Jewish education.