I’m not very interested in polls when we can see actual election results.
So far, Trump can’t muster more than a third of the votes. That’s just a fact.
The point is that anti-Trump people falsely assume that he'll get almost no votes from dropouts. But Trump has maintained his position as 12 candidates have dropped out. (There were 17 initially, now 5). The dropouts' supporters went to remaining candidates - including Trump - proportionally. And polling a three-way race provides data to confirm that exact phenomenon continues with future dropouts.
But feel free to repeat the "Trump ceiling" fantasy. All the anti-Trump pundit are.