@izzythepush,
When the option is going to be: some xenophobic RW GOP in at least name with a MAGA cap on the coat rack behind him, who has no place in his world view for Arabs or Jews, past Jerusalem and the end times and Christ's return and the Millennium, or Joe Biden?
Not voting for Joe Biden may be exactly a vote for the Orange Shitgibbon.
The way it works here in the US is the higher the voter turnout, the more likely the Democrat wins. The lower - the more likely the Republican wins.
If someone boycotts the Presidential election, they also tend not to vote at all for any of the down ticket candidates. This only helps Republicans take over State Legislatures and gerrymander their votes to be worth more than Democratic votes. And even worse: elect more wingnut GOP Congressmen who all face re-election every two years.
Arabs will reap no benefit by not voting for Joe Biden in the general election.