I certainly don't want you riding a car into a crowded downtown. I personally walked to work in downtown Seattle (to Amazon, ironically). I'd vote for any local candidate who pushed for an aggressive pedestrian-only zone in the city with a strategy for expanding mass transit access and park and rides. The technology for affordable mass transit is almost a century old; I think incremental, sustainable progress on that technology is better than anything the Tesla has to offer. Wide-spread single-user cars are one of the worst things to happen to this country.
And homelessness can, in fact, be reasonably construed as Amazon's problem (or a problem caused by Amazon if we're a city thinking of letting Amazon in). The exacerbation of homelessness is an externality caused in part by Amazon's concentration of high-wage jobs in a small city and the subsequent skyrocketing of property values combined with mindless gentrification. So it's both a cause for concern when courting Amazon, and it's a form of pollution that they bring to town that it is not a priori unreasonable to hold them accountable for (to the extent that they are responsible for it).