U.S. Congressional Research Service -
Sanctions Primer: How the United States Uses Restrictive Mechanisms to Advance Foreign Policy or National Security Objectives (link opens a .pdf)
CRS said:
Congress and the executive branch may impose coercive measures—largely using economic restrictions—against a foreign government or specific individuals and entities to deter or altogether change objectionable behavior of that government, individual, or entity. Such measures are commonly referred to as sanctions. The power to impose economic sanctions is derived through legislation, including the laws establishing emergency authorities given to the President, as well as legislation authorizing or requiring sanctions related to specific U.S. foreign policy or national security objectives.
For an example, see
Wikipedia's page on the 1986 Comprehensive Anti-Apartheid Act. This was 24 years after the United Nations passed
Resolution 1761 (Wikipedia again), and 9 years after a General Motors board member published
The Sullivan Principles (more Wikipedia), which helped spur the popular divestment campaigns in the U.S. Divestment from South Africa by U.S. colleges and universities was scattershot, throughout the 1980s. The biggest one was in 1986, when the University of California system withdrew $3 billion (about $8.5b today), not just from South Africa, but from businesses that did business in South Africa.
If an international divestment campaign against Israel were to ramp up today and follow a similar timeline - and there's absolutely no reason to think it would, because South Africa held relatively minor religious, cultural, and geopolitical importance to anyone outside South Africa - we could expect significant economic impacts on Israel maybe in 2060.
Beginning in the 1960s, the African diaspora in the United States began to agitate against Apartheid*. Martin Luther King Jr. gave a speech on it in 1965. Muhammad Ali made an appearance at the UN Special Committee Against Apartheid in 1978. I don't know who the comparable public sociopolitical figures in the Palestinian, Arab, or Muslim diaspora here might be, and I don't know whether or not the Arab or Muslim diaspora here has a collective identity comparable to that of the African-American community, so I'm not even sure it's even a valid comparison. DJ Khaled and the Hadid sisters are perhaps the highest-profile Palestinian-American pop-culture celebrities. I don't know if they're outspoken about Gaza, because they're not on my cultural radar. As a fan of MMA, I also happen to know that Belal Muhammad is Palestinian-American, but I wouldn't expect many people to even know who he is, and I don't know if he's particularly outspoken on political issues, I don't follow him on social media or anything, I only watch him compete.
(I also know that the UFC censors its broadcasts and videos of anything related to Gaza, such as when Lightweight Champion Islam Makhachev, a Dagestani muslim, flew the Palestinian flag after winning a fight. I've heard that images of him with the flag have been scrubbed from videos of that event. I guess there's no telling how many other Right-Wing American businesses and organizations are similarly silencing support for Palestine. I only know about the UFC's censoring because of a Canadian MMA journalist, who happens to be of Egyptian, Syrian, and Lebanese descent.)
*
[EDIT] Actually, the African-American awareness of Apartheid began before that. Paul Robeson and Bayard Rustin (and others, but they're the most famous) founded the American Committe on Africa in 1953.