These are big differences. If we could all live according to the original, basic premises, the world MIGHT be a little quieter.
“1) Judaism does not proselytize, does not actively seek out new followers and makes it difficult to convert to being a Jew, it is not recruiting and never has.
2) Christianity does proselytize, does seek out followers, does actively recruit.”
Judaism was originally tasked with “producing fruit” for God’s Kingdom, i.e. bringing people into it (proselytizing), but again, the religious leaders misread God’s intent. Christ talked about their failure in the parable of the vineyard which, itself, is based on Isaiah’s song of the vineyard in Isaiah 5 (1-7).
God’s Kingdom was never meant just for the Jew, as the promise of being a great nation was made to Abraham, a Gentile, who himself preceded the Law of Moses by at least 700 years. But the promise of that kingdom was (and is) based on faith, not keeping any law. Faith pleases God, legalism (of any stripe) does not.