San Francisco's tech billionaires are fighting over how to deal with the city's homelessness crisis - Here's what each tech bigwig says about Tuesday's vote on Prop C

"Our city is in a crisis. A crisis of cleanliness, a crisis of inequity and inaction ... and we can’t just sit by anymore," Benioff — who has donated a combined $7.9 million between Salesforce and himself — told the San Francisco Chronicle.

"Completely with you @Benioff - look forward to connecting our efforts from SJ to SF to Oakland!" said Robbins, whose company's headquarters is in San Jose.

Will.i.am has not provided a public statement but is listed as an endorser. The former Black Eyed Peas frontman said at the 2016 Salesforce Dreamforce conference: "I'm here because I think geeks could change inner cities forever."

San Francisco Mayor, London Breed, has voiced her opposition to Prop C.

"I admit that while I come at this as a citizen first, there’s an unfairness I see in my role of CEO of Square (this does not apply to Twitter). Companies like Square and Stripe would be taxed at a significantly larger total contribution than much larger companies like Salesforce... We’re happy to pay our taxes. We just want to be treated fairly with respect to our peer companies, many of whom are 2-10x larger than us," Dorsey said in a tweet thread on Prop C back in October.

"We often criticize political leaders for lacking courage. Let's applaud them when they take nuanced stances that won't be uniformly popular: kudos to @LondonBreed, @Scott_Wiener, and @DavidChiu. Prop C is poor policy," Collison said in a tweet.

Stripe also released an official letter on its opposition to Prop C.

"Prop c is the dumbest, least thought out prop ever. Please get the facts and vote no. Then lets all focus on real solutions for sf," Pincus said in a tweet.

Graham, whose title on the Y Combinator website reads "Founder, Retired," simply retweeted Patrick Collison's tweet linking to Stripe's stance on Prop C. According to SF County records, he's donated $150,500 to oppose the proposition.

Lyft CEO Logan Green has not personally donated to "No on Prop C" efforts, but as a company Lyft has given $100,000.

Moritz also has not spoken out publicly, but public records show he's donated $100,000 to the opposition.

Perhaps not a "tech" executive, it is noteworthy that Charles Schwab personally donated $100,000 for "No on Prop C" efforts.