I’m currently towing with a 17 Tahoe. I have 3 kids also and it’s great as a daily driver but not so rock solid as a TV. I think the issue you will run into first is exceeding payload. I know that’s more important to some than others but considering my entire world (family) is trusting me to make sound decisions, I’m in the market for a truck. My kids are still fairly young so I’m not over on payload yet but my trailer is quite a bit lighter than yours also.
Can you tow that trailer with an Escalade, probably . Should you? Well that’s for you to decide. I personally have little tolerance for risk in this arena.