Touch Screen Unresponsive

Hi I have a couple of issues regarding my iPhone XS.

1. The touch screen is unresponsive even after a forced restart
2. Decided to replace my phone, but unable to backup my phone to itunes
3. Because I have to unlock my phone to use accessories
4. And I am unable to unlock my phone as my touchscreen is unresponsive

As I am replacing my phone, I would need to backup my phone and also factory reset it.

Is there a way around this?

Please advise.

Your help is greatly appreciated. Thank you