I don't like the idea of a carbon tax in comparison to a fixed carbon budget. Why would we let politicians decide on a percentage, which might or might not lead

I don't like the idea of a carbon tax in comparison to a fixed carbon budget. Why would we let politicians decide on a percentage, which might or might not lead to the desired outcome, when we can just limit the budget and trade emission certificates? I also think the government should not sell the certificates but issue them equally to all people (e.g. once a year) who can then sell or consume them. Disclaimer: I am not subscribing to the climate alarmism, but I see that there is a majority now which does, so I at least demand efficient solutions and not more bureaucracy and cronyism.