Right. Am going to say exactly what I feel and probably out myself doing so.
I live on the isle of Man and was born here. My Father raced in the TT, as did my younger Brother (my only sibling) and he died doing it.
I utterly defend the the right of any man or woman to race the TT.
It's not true in the slightest to say that most of the people who live on the island don't like the TT. Most people adore it, as it is an amazing experience for two weeks of the year. Yes, there are a minority who dislike it, but as us Manxies say "if you don't like it, there's a boat in the morning"! 
Now, with regards to safety, massive amounts have been done over the past 10 years to make it as safe as possible.
In terms of statistics, when you think that around 80 people enter each race (5 solo classes and two sidecar classes), they do on average of 3 laps in a race (and some races are 6 laps), each lap is 37 and 3/4 miles, and they also spend a week practicing for the races. That is a massive amount of miles! Average that over 104 years and the statistics show that it is safer than climbing Everest. But people who climb mountains or sail oceans are just as reckless but somehow get applauded for it (not to mention OBEs etc!).
But at the end of the day, when you have people doing laps of 37 and 3/4 miles at an average of 130 miles an hour, you cannot make it perfectly safe. and the riders know this.
No one ever, ever does the TT without knowing this. To even get a licence for the course, you have to have raced in a specific number of other events to qualify enough "signatures". As such, no ones family is getting a shock when their partner rocks up at Glencruchery Road to head off. They are already with a known racer. And you had to assume they have accepted that fact and the dangers that go with it.
If you have watched the film (about 2010's races), then surely Bridgit Dobbs feelings were clear - she knew the risks and although she is obviously sad Dobbsy died, she still loves the island and the TT. I thought she put it extremely well. Again, I speak as someone who has lost their only brother in the TT races
Sure, I'd rather my brother were alive today, but he died fulfilling his life's dream - no exaggeration. He would have honestly hated being hit by a bus, or getting cancer or something instead - he told me this himself.
Life is far too regulated nowadays - I love that my homeland allows people to stick two fingers up to that and go he'll for leather if they choose.
And it is a choice - some of the best riders in the world (Valentino Rossi amongst them!) have admitted that it take massive balls to race the TT and that they wouldn't dare do it.
Now - people who don't watch out for bikers when they drive.....that's a whole other fucking subject. 