When I look at the list of demands I'm pretty quick to dismiss it. Then I remember how I dismissed the 1999 WTO protests in Seattle too, and how many of the fears those protesters had were realized over the next two decades. I might be too hopeful, but I really think the city leadership should talk to them and hear them out, instead of just trying to push them over.
Note that rent control, even if the city doesn't have the power to establish it for private rentals, can effectively be achieved by the same means.
Good thing I never suggested that. Gentrification has a racial dimension because race correlates with economics, but it simply is the rich displacing the poor in a particular region; if you take housing units by eminent domain and establish a process for renting them out as public housing that doesn't distribute them to the highest bidder, you prevent gentrification. You neither have to acquire nor distribute based on race.
You are incorrect. Laws may both explicitly (or otherwise intentionally) target race and may disproportionately impact race without explicit targeting.
Laws doing the former are subject to “strict scrutiny”: the discrimination must be the least invasive means of achieving a compelling government interest. The latter isn't prohibited at all, though it can be evidence of discriminatory intent. (You may be thinking of employment law, where disparate impact is generally prohibited discrimination, unless closely tailored to a specific legitimate non-discriminatory business need.)
See https://en.m.wikipedia.org/wiki/Equal_Protection_Clause for a discussion, especially the section under “tiered scrutiny” and “disparate impact”.