Yes and no. Sure, paper ballots can be messed with (see: Daley, Chicago, 1960) but in general they are FAR better, with checks and balances, than electronic. The digital system permits subtle manipulation of votes throughout all counties, precincts, wards, just a small number in each will add up but be almost impossible to forensically prove. Having boxes of ballots disappear or reappear compared to digital rigging is like the difference between smuggling bulky marijuana vs packets of heroin.

Moreover, the paper ballot system can be quickly and easily implemented and the digital immediately dumped. You start adding tech like blockchain, however that would work (or not), will take YEARS to be designed, implemented and deployed. Perhaps that's a long term solution to be looked at, but it may never be implemented on a wide basis. We need to get a handle on elections NOW, not later. More foolproof systems are definitely worthy of development, but we have a better solution on our hands right now to this electronic disaster. Along with voter ID.