Can I get a liberal to explain how wanting to make sure elections are fair is a threat to democracy?

I would love for a liberal to explain how making sure elections are fair is a threat to democracy. How is having doubts that elections are fair a threat to democracy. Apparently people who doubt the fairness of elections are a fringe minority who keeps believing an absurdity despite 60% of voters in the midterms saying they believed the elections are fair.

How is 40% of voters a fringe minority.

Im just an ignorant rural white person from Tennessee so my brain don't work hard enough for me to figure this out please use simple words.

Can I get a liberal to explain how wanting to make sure elections are fair is a threat to democracy?
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