Geirim no longer necessarily break all ties with their former family members, just as people generally no longer sit shiva when their child marries a non-Jew G-d forbid.
I feel for the ger or geyores who posted originally, ebcause it would be naive to think that this is not a problem for them. But, people have a right to feel that a shidduch might be too fraught with problems for them to want to take on those problems. I married a baal teshuvah and he is a tzaddik and a real mensch in every way. But there were sholom bayis issues when his family did not accept that we would not attend the interfaith marriage of his niece, and other issues along the way. My in-laws were outstanding baalei chessed, my husband gets those middos from them. We learned to deal with the various problems that arose. But how do you deal with in-laws who truly believe their precious daughter is going to Gehenom for becoming a Jew and denouncing their “saviour?” It is not a glatt issue, and I blame no one for not wanting to take on this challenge. Perhaps the solution is for geirim to seek out other geirim. I don’t know. I do have several friends who are geirei tzedek,and I truly do not think of them as “formerly goyim.” They are simply my good friends.