Weird question of Jewish value priorities

Consider the following two moral choices:

(a) I marry a Jew, have Jewish children, teach them to keep Shabbat, and roll the dice knowing that there’s an 85% chance (based on US denominational affiliation statistics) that they won’t keep it when they grow up (questionable if they’ll even keep it while growing up if their parents are not true believers anyway). They’ll likely spend years torn by existential anxiety and guilt over what it means to be a good Jew (as I have), and are liable to make decisions that could forfeit their place in the Olam Haba.

(b) I marry a non-Jew, have non-Jewish children, and raise them as “gerim toshavim” who keep Shabbat. Maybe they end up continuing to do so, maybe not, but the Olam Haba is no longer at stake for them, unless at some later point they make a free, uncoerced decision to accept the brit. If so, an Orthodox synagogue will be happy to have them; if not, they’ll be content with a heterodox one or with hanging out near home on Shabbat. I will have betrayed the promise our ancestors made to Ezra, but I will have saved them from the guilt of betraying the one with Moshe.

Which is better?

Edit: “gerim” wasn’t the right term.