IMO, this issue of theft and bike parking options is one of the major reasons why bikes (and eBikes) will never be serious transportation for many. Yes, for some it works well as they are able to keep their bike either under surveillance or locked safely at work. But, for instance, not being able to leave the bike locked to something secure for as long as 2 hours without keeping constant watch on the bike is a big consideration on taking the car versus the bike even for relatively local (within 7 mi) trips.
Going to a movie and riding one's bike to get there is a very standard type of activity. What a shame there just aren't better/available/cost-effective solutions to ensure one's expensive bike is still there and in the same condition as when left.
At this point with some of these expensive eBikes, one might want to hire an armed guard to stand by the bike in certain areas in addition to 3 uLocks securing it to something like a lampost. (tongue-in-cheek suggestion, but maybe not really).