Philosopher wrote: “[Y]ou won’t say how we are or we are not a light unto the nations, Hashem is the judge of that.”
My response was to you being the judge of that: “I strongly believe religious Jews are a light onto the nations when WE [emphasis mine] vote…and protest…[and are ] more outspoken and a voice against immorality”
In any event my objection is more practical. The point of being “a light unto the nations” is to model positive conduct or growth that others will observe and be motivated to emulate. But for that to happen, the “nations” need the opportunity to observe & experience. The examples of being a light that you gave –emerging from the cloister to vote for an objectively base person, or to protest liberal values, or to rail against immorality– will not attract or influence liberals, or those of questionable morals or values, or, really, anyone.
As for your decision to not invite those who are “not on our spiritual level…” Luckily, that, too, is for Hashem to judge. I was a widow at 33 with an 18 month old and no observant family nearby. I will be eternally grateful to the many hosts who B”H did not pause to assess my spiritual level before inviting me to share Shabbos & Yontif meals