Interesting poll, though you get more info if you actually go to the source itself.
Pew is a very credible polling source.
Brietbart, not surprisingly, put's it's own spin on it and couches it in terms of "tolerance". The poll itself
does not say anything about "tolerance" but rather whether one respects the views of the other.
You can tolerate what you don't respect - in fact, we do that all the time.
What's not surprising is the gap between men and women - it would be very hard for a woman to respect the views of someone who supports such an openly misogynistic candidate and who makes excuses for him (it's just "locker room talk" etc).
The poll also makes the following points:
The differences in respect that Clinton and Trump supporters have for one another may be connected with voters’ perceptions of the levels of respect that the candidates themselves have for each other. The survey found that nearly nine-in-ten Clinton supporters (88%) say Trump has been “too personally critical” of the Democratic nominee during the campaign, compared with seven-in-ten Trump supporters who say the same thing about Clinton.
About six-in-ten voters (62%) overall say Trump has been too personally critical of his opponent – the highest share for any presidential candidate since Pew Research Center began asking the question in 1988 (though this was not asked in 1992). A substantially lower share (44%) says the same thing of Clinton, though that percentage is still higher than it was for Barack Obama during his election and re-election campaigns.
One thing for sure, this election has brought out the Ugly, on all sides.