I think it's more of a "relative" to certain cars.
I could compare it to a miata that is ~2300lbs. But that's not really relevant then, is it? A Jeep Wrangler is basically a truck - so I don't think that's a good comparison.
Compared to other "compact executive cars" (as its class states) it's close to the competition.
Well, I mention it only because I get the comment a lot and my last car was a (two door) Wrangler. You could compare it to trucks, but it's just not perceived as a particularly heavy vehicle even relative to normal cars.
The vibe I've got from talking to people is that they think the Model 3 (or Teslas in general) are significantly heavy relative to normal consumer vehicles. It's pretty surprising to them that even a 2 door Jeep Wrangler is actually heavier.
I think most people would be surprised just at how heavy a Jeep Wrangler is to begin with. Without even comparison, most of the 2-doors don't look like they'd be that heavy.
Same with my 1-series. It's obscenely heavy for how small it is.
That's a Pakistan-only car with no safety features [0]. (From the Wikipedia description, "a car with everything manually operated, and with no safety features. The car lacks airbags, ABS, rear window defogger, side air conditioner vents, seat belt reminder and even rear seat belts.") So yes, it's light. You'll also immediately die in a collision, but you get what you pay for I suppose. (The Alto is sold more broadly, but it's still obsolete)
The Tesla Model 3 is 3552-4072 lbs, while the new Jeep Wrangler (JL) is 3955-4455 lbs.