[this2shallPass]

Maybe that is the case with some small, insular sects of Orthodox Jews? Some of the groups among those often referred to as the "Ultra Orthodox" - I don't know.

It is not aligned with the vast majority of Jewish views about conversion to Judaism.

In general, conversion is possible. As far as I can tell there are even clearly-enough defined requirements.

Jews are not supposed to treat converts any differently than non-converts. People being people, this doesn't always happen, but that is the reasonable principle.

Given that Jews for centuries have not proselytized to non-Jews, many believe you cannot convert to Judaism. You can.

[hutzlibu]

I really cannot find that article anymore, but yes, it seems it must have come from an ultra ultra orthodox section and who knows why it ranked number 1 on google at that time (some years ago), fooling me. Because apparently yes, you absolutely can convert to judaism. It just isn't easy, like it is with other religions.