There is a big difference between anti-miscegenation laws and a boycott. A boycott involves who you personally choose to marry. This is a personal decision. No one will force you to marry outside of your religion or ethnic group, but this is a matter of individual freedom.
Anti-miscegenation laws mean a dominant ethnic group (in this case Jews in Israel) are preventing people from marrying who they love by the force of law. Anti-miscegenation laws take away freedom.
I don't know of any modern country enforcing Catholic anti-miscegenation laws. Europe got rid of their anti-Miscegenation laws 100 years ago (with a brief period of anti-miscegenation laws resurfacing around the time of World War II). America got rid of the final White Supremacist anti-miscegenation laws 58 years ago.
All developed countries, with the exception of Israel, consider these laws to be backwards and barbaric. This is institutionalized bigotry... dictating that some people are not suitable for marriage for the dominant religious group.
A true modern democracy doesn't allow for anti-miscegenation laws. Yes, I will condemn them wherever they exist. There is no difference whether they are protecting White Supremacy or Jewish nationalism.
You've taken my original thought of Sept. 17:
"It has got me to thinking also. I would like to see secular Jewish males in college boycott dating Shiksas. The reverse is of value also. A boycott by Shiksas of dating secular Jewish males. Right now there is an unofficial boycott, but only to and from Orthodox (Modern Orthodox) Jews. But, it appears that those secular Jewish males are too attractive to many a bright, educated Shiksa."
and went off into a discussion of miscegenation and Jewish nationalism. My concern is not Jewish nationalism, but survival of Judaism, as a religion, outside of Israel, since the existence of Israel might be tenuous in the future, what with so many people attempting to denigrate its current mode of existence. And, since Jews are not a race, no more than Arabs are a race (actually both are cousins according to the Old Testament), miscegenation is an inappropriate topic to my posting.
And, since my thought only was concerned about an unofficial (aka, social mores) boycott of INTER-FAITH dating, by Orthodox Jews, such unofficial dating criteria might be appropriate for secular Jews to have a Jewish identity survive for any Jew in the future. It was unofficial for Jews in the 1960's, when Gentiles thought that Jewish males just wanted to date Gentile girls, but not marry them; however, as a decade or two passed, it was obvious that Jews were marrying Gentiles, and the mixed couple even celebrated Christmas oftentimes (one of the supposed reasons why one shouldn't marry a Jew - one loses celebrating Christmas).
So, even with an unofficial (aka, social mores) boycott, interfaith couples will marry; however, if there was more awareness of what that will likely ultimately result in for Judaism, as a faith, a percentage of secular Jews might decide that it is not for them. It is all up to the individuals; however, a little education amongst the secular Jewish population might help Judaism survive.
Also, from the standpoint of protecting children from mental anguish, how many interfaith couples decide to celebrate both Jewish and Christian holidays? That "confusion" as to who one is might be the overriding factor why children of a mixed marriage marry a Christian mate, so their children will not have the confusion of two religious beliefs. So, inter-faith marriage is just tantamount, much of the time in my opinion, to a slow, but efficient eroding of Judaism as a surviving faith.
Let's stop using the word "miscegenation" or "Jewish nationalism." I was talking about Judaism's survival in the Diaspora by educating secular Jews of the long term effects of just inter-faith dating. No anti-miscegenation. No Jewish nationalism.
I would just also like to see inter-faith couples, regardless of race, just raise children Jewish, if one spouse is Jewish. That would go for gays or heterosexuals. Within the confines of a marriage, Jewish proselytizing might be good for Judaism's survival.