Cardi B Slams Billionaire's Stepson Over Blink-182 Amid Titanic Drama

Cardi B is going off on the stepson of the British billionaire aboard the Titanic submersible, saying he pulled a wildly inappropriate move by going to a live show amid the drama.

The rapper sounded off on Brian Szasz for recently going to a Blink-182 concert in San Diego -- something he proudly touted and defended online, but Cardi sees it the way many others online have ... which is to say, that's messed up dude.

Of course, she says it the way only Cardi can ... asking the rhetorical question she figures Brian might have asked himself before deciding to go see Tom DeLonge and co. in the middle of a family crisis -- uh, should I really be doing this???

According to her, the answer is obviously no ... as she believes the dude oughta be at home crying and saying his prayers for his stepfather -- who, by most experts' accounts, has a slim chance at survival with less than 24 hours left of oxygen in the deep-sea vessel.

As we've reported ... Hamish Harding is one of the 5 people inside OceanGate's Titan. Brian acknowledged the family link online -- and then proceeded to let the world know he was ready to rock with Blink-182, arguing his family would want him to enjoy himself.

While he certainly seemed comfortable with the excursion, a lot of folks in the Twitter-verse were giving him an earful ... and calling him out for what they perceived as insensitivity.

And, of course, there were even some callous jokes cracked that Brian might be stoked to know he's got a fortune of inheritance coming his way soon.

As for CB, she's got a unique final takeaway.

In a nutshell, better to be poor and loved, than uber-rich and seemingly uncared for ... so sayeth, Cardi.

Originally Published -- 6:42 AM PT