Chaim,
My first carry gun was a 3" Model 13, loaded with 125 g .357 Golden Saber. I love that little smith and still take it to the range frequently. Even worked up a "light-magnum" load that matches the muzzle velocity of the G-S without the dramatic noise - but that's another story.
When I realized the CZ75B would disapear in my holster just as well as the little smith, held 3x the number of rounds, and the muzzle velocity of the 9 mm 124 g hydra shocks was the same (1150 fps) as the 125 g .357 from the 3" revolver, the only question was reliablity. The CZ prints at least as well @ 15 yards, and does not "jam" or fail to fire, whatever I feed it.
The rest of the advice you have received is excellent - walk in groups, and maybe find some Conservative/Reform Jews who like to play baseball on Shabot to walk with you, with their gloves, balls, and bats. Also suggest to the authorities that they do not need the bad publicity a fatal attack on an Orthodox Jew, on the Sabbath, would bring. And yes, for home invasions - a shotgun, not a handgun.
And now I'll go out on a limb and probably provoke someone's ire. I grew up in "the north" and got all the typical brainwashing about endemic antisemitisim in the South - but it is all [expletive] nonsense! If it ever was true at all, it is no more. I've never faced any real hostility in Texas. I've been called a "yankeejewliberal" - but only by a smiling neighbor who was clearly teasing me, since he was aware of the stereotyping I grew up with. I knew he was teasing since I'm not a liberal.
So - as much as it may seem repugnant to cut and run in the face of danger, you might give some serious thought to getting the heck out of there. Unless you can change the laws probibiting you from going armed, you will continue to be a sitting duck. Were your progenitors, who left Europe in advance of the Shoah (I'm guessing) - were they cowards, or simply people who were smart enough to get out before it hit the fan? There is a good-sized Jewish community in Houston, and in Austin, and probably elsewhere in Texas. Or other states that are Shall-Issue. You would be welcome.
Didn't mean to go on at such length, but you hit a nerve and I suppose I over-reacted. Best wishes for your (y'all's - second person plural) future well-being.
Regards,
Andrew