1- Voter registration information has been recently hacked by foreign countries including Russia and Iran, so if you register to vote for a candidate, you could be made vulnerable to two sides of the spectrum including threat, pressure to vote for a certain candidate, scam political ads, and more.
2- Even Democratic candidate Joe Biden has said that voter registration is a fraudulent registration after saying quote, "We have put together the most extensive voter fraud organization in history" ( we obviously referring to the democratic party who put it together, but hey, it was just on video.)
3- Voter registration could also mean that your ballot after casted is likely to be counted only weeks after the election date due to the mail-in ballot system.
4- Even after you have registered to vote, you will not see ANY decline in the notifications on websites to register to vote, in fact, this will only INCREASE as it gets closer to election day, and you're probably gonna see just as many ads to register as any third-party ads nearing election day per day.
5- If you don't feel like registering, you can always apply online, or have someone else fill it out for you, and just sign it as well.
Hope this helps, if not, comment down below please!!!