Neweternal you made reference in your OP to wanting sovereignty.
Do you know Westminster had sovereignty all along?
The sound bites about sovereignty were a trick of the Leave campaign.
" Parliament has remained sovereign throughout our membership to the EU” despite people “not always feeling like that” was expressly stated in the small print in the White paper leading to the Withdrawal Act.
The key message from the Leave campaign was constantly repeating the myth that ending the UK’s membership of the EU would "bring back sovereignty" to Parliament .The talk of ending Brussel's control over national laws was a fiction because it never had control.
National governments including ours always retained sovereignty.
If you think about it -Westminster deals with health, pensions, universal credit, personal taxation, national insurance, education, defence, local government remits, crime, punishment, marriage and family law, property, planning, fiscal policy, elections, electoral boundaries, policing, inheritance etc etc .
Westminster allocates 99.3% of GDP on these things.
0.7% of GDP was our EU membership fee. We chose ( using sovereignty) to delegate some shared regulation making in which we had a joint say. This gave us a reciprocal right to drive policy and vote on what happens in Belgium, Portugal, Germany etc.
This shared regulation making only applies in limited subject areas linked to trade, namely, food , agriculture, consumer safety, some worker's rights and environment.
Why do you perpetuate the myth about our laws when it simply isn't true?
What positive difference will changing the process for a few food and environmental standards etc make to your life?
Were you aware that we jointly set good and environmental standards etc in Germany, Spain etc and we will now no longer do that?
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachmentdata/file/589191/TheeUnitedKingdomssexitfrommandpartnershippwiththeeEUWeb.pdf