What gives Parliament power and authority?

Democracy undermined https://youtu.be/LUEaX3cE-1U?feature=shared

The Parliament Acts, https://researchbriefings.files.parliament.uk/documents/SN00675/SN00675.pdf

The Parliament Act 1911, https://www.legislation.gov.uk/ukpga/Geo5/1-2/13/contents

The Parliament Act 1911, https://en.wikipedia.org/wiki/Parliament_Acts_1911_and_1949#:~:text=The%20Parliament%20Acts%20have%20been,validity%20of%20the%201949%20Act.

Crown immunity, https://en.wikipedia.org/wiki/Sovereign_immunity#:~:text=The%20monarch%20is%20immune%20from,verges%22%20of%20a%20royal%20palace.

The energy bill, government response, https://petition.parliament.uk/petitions/643533

Crown immunity, under. QE2, presumably applies to hrh KC 3rd. https://www.theguardian.com/uk-news/2022/jul/14/queen-immunity-british-laws-private-property

Crown immunity and the rule of law (1) https://www.linkedin.com/pulse/crown-immunity-rule-law-1-bob-spicer

British government ministers have been complicit in millions of deaths since 1945, so don’t be surprised that they won’t face justice over coronavirus
https://www.dailymaverick.co.za/article/2020-05-02-british-government-ministers-have-been-complicit-in-millions-of-deaths-since-1945-so-dont-be-surprised-that-they-wont-face-justice-over-coronavirus/

How effectively can British citizens hold British government accountable?
https://www.mytutor.co.uk/answers/58557/GCSE/Government-and-Politics/How-effectively-can-British-citizens-hold-British-government-accountable/