Read the whole report. Mediabias grudgingly admits the SPLC isn't reliable and has had failed checks. Also, cherry picking one source of the many I posted amounts to a trivial objections fallacy.
No, they're not. And even the ones that are opinions have factual evidence within them. Several are links to articles by people smeared with lies by the SPLC who successfully sued them for slander and libel.
Straight from your link.
Failed Fact Checks
- None in the Last 5 years
- Overall, we rate the Southern Poverty Law Center (SPLC), Left Biased based on story selection that favors the Left and strong political advocacy for social justice. We also rate them High for factual reporting due to a clean fact-check record. Although they have mischaracterized some groups and individuals, they ultimately apologized, acknowledged their error, and made appropriate corrections.