I don’t know how blunter to make the case, but blockchain is a solution looking for a problem. Using it to make voting software more secure is a joke. A very bad joke. If you won’t take my word for it, try this formal paper on for size.

“Going from Bad to Worse: From Internet Voting to Blockchain Voting” — https://people.csail.mit.edu/rivest/pubs/PSNR20.pdf

The impetus for this came from an email letter called “Crypto-Gram” published by Bruce Schneier. I strongly recommend you sign up for it here: https://www.schneier.com/crypto-gram/