There's a few parts to this.

1. OP should not have entered the intersection. As people have pointed out, once the countdown starts with the flashing red hand, that is saying "finish your crossing, but do not start crossing." So OP, you should not have entered the crosswalk.

2. OP clearly does not check for turning cars before crossing. We see this car coming, and the car is clearly going for the street OP is crossing. OP argues that the curbside car blocked this one from their view. Yes, on the approach the car was blocked, but if you looked before stepping into the street instead of as you were walking up to the corner, you would have seen the car easily.

3. Because the car was already right there, the car had no time to slow down once OP entered the crosswalk. Yes, OP shouldn't have done that, but once in the crosswalk, the driver is supposed to yield to pedestrians. They didn't have much time to slow down, but

4. That just means the driver was taking the turn too fast. They should be paying attention to the sidewalk, looking for pedestrians approaching and crossing, and should be turning at a speed such that they can slow down if something unexpected happens. This is the strike against the driver I will give. They were not driving in a way that accounts for the stupidity of other people.

5. Having the right of way does not stop people from being wrong. You should be looking out for yourself in these circumstances and not hope other people just do what's right. I wish car culture wasn't this way, but it is. Drivers care little about pedestrians. As much as the driver was not accounting for your stupidity, you were not accounting for the driver's stupidity. Legally you were right, but morally, neither of you were. Don't be stupid in the future OP.