BlackLivesMatter is most likely an international SCAM organization which funnels money to the DNC campaigns from all around the world

Their website describes them as:

The official #BlackLivesMatter Global Network builds power to bring justice, healing, and freedom to Black people across the globe.

Their wiki describes them as:

Black Lives Matter (BLM) is an international human rights movement, originating from within the African-American community, which campaigns against violence and systemic racism towards black people. BLM regularly holds protests speaking out against police brutality and police killings of black people, and broader issues such as racial profiling, and racial inequality in the United States criminal justice system.

So we know for sure that BLM is a "global" / "international" network.

Clicking on the "Donate" button on blacklivesmatter.com sends you to an "ActBlue" website:

https://secure.actblue.com/donate/ms_blm_homepage_2019

You can even read that the donations are being made to ActBlue in the fine prints. The terms and conditions also link to ActBlue and mention "Campaign Finance Laws":

https://secure.actblue.com/content/fineprint

Looking at the expenditures of ActBlue show that all contributions are directly going to top DNC campaigns:

https://www.opensecrets.org/pacs/expenditures.php?cmte=C00401224&cycle=2020

1 Bernie 2020 $186,780,034

2 Biden for President $119,253,857

3 Elizabeth Warren Presidential Exploratory Cmte $93,478,053

4 Pete for America $78,100,960

5 Democratic Congressional Campaign Cmte $55,684,603

6 Amy for America $43,167,720

7 Friends of Andrew Yang $31,705,527

8 Democratic Senatorial Campaign Cmte $31,067,413

9 Democratic National Cmte $29,924,707

10 Amy McGrath for Senate $29,558,536

I am fairly certain (though lawyers can correct me if I am wrong) this is illegal as it's funneling international money into election campaigns of DNC.