2016
Trump talks about people leaving rallies like his on stretchers, says he'll pay people's legal fees if they hit someone, etc. Several fights break out during said rallies. Trump continues his rhetoric.
Some of Bernie's supporters graffiti and make harassing and potentially threatening phone calls. Bernie Sanders issues a statement denouncing violence.
2017
Steve Scalise shooting, Bernie makes a speech on the senate floor denouncing violence.
Mosque in Canada shot up, Trump, silent.
Militia member who wanted to build Trump's wall bombs a mosque in Minnesota, Trump, silent
Trump supporters chant antisemitic slurs carry torches (albeit tiki torches) dress invoke nazism, and one member drives his car into a crowd injuring people and killing one of them. Trump, "very fine people" "both sides" etc.
2018
Bernie resolves to combat sexual harrassment in any of his campaign staff.
Trump fan calls in threats to CNN, Trump mocks " fake news CNN" on Twitter.
Kid who bragged about writing Trump a letter and receiving a response shoots up his school killing 17 people in Parkland Florida. Trump, basically hides until he feels like it's blown over.
And I'm sure it wouldn't be hard to find many more instances of Bernie espousing nonviolence and many more examples of Trump fomenting it.
I maintain, this is not really a fair comparison neither by quality nor quantity.
See, that's exactly what I mean. Trump regularly made statements (and Tweets) condemning those types of violence after they happened, but your perception of it is that he just ignored them, and I'm not sure why that is.
Christchurch, for example, where he referred to it as a "horrible massacre" and a "vicious act of hate."
Invalid Link Removed
Or when that Florida supporter was mailing bombs to prominent Democratic Party members:
Invalid Link Removed
Even the most recent:
Invalid Link Removed
And, while I think his handling of Charlottesville (and many, many other things) was abysmal, he did condemn the violence immediately:
Invalid Link Removed
And did so even more strongly a few days later:
Invalid Link Removed
This isn't comprehensive mind you, just from some quick searching. There are almost certainly attacks he never mentioned (you named a couple that I don't even recall, which is a sad commentary on recent events if there ever was one!), but it isn't as if he isn't condemning these acts when they occur. He is, and he does so with the same type of language used by his peers.
I can only assume it is because people perceive him as being less genuine, so they write it off or ignore it, but I don't really know.
Don't misunderstand me: I'm not a Trump supporter, and I do think his rhetoric is encouraging these events, and it would be in all of our best interests for him to stop using it. It's just that it isn't all that different from Sanders who also uses similar divisive rhetoric (99% vs. 1% with Trump using Rep vs. Dem which largely shakes out to White vs. Non-White) and then condemning the acts of violence they spawn whilst continuing to espouse the same rhetoric.
All that said, I grant that Trump's rhetoric is more extreme in most (perhaps even all) cases when compared to Sanders', but with that being the case, the difference between them is not one of kind, but of degree.