Oh really? This should be interesting. Please present your evidence. As far as I know, reggae grew out of a fusion of underground popular music in the ghettoes of Jamaica. Back in the 50s in addition to Trinidadian calypso, popular musical innovations within Jamaica itself among the working class gained popularity, particularly ska, which gave way to rock steady and then the more overtly protest-style reggae. In an interview, Bob Marley also credits a Trinidadian panman called Merlin Taitt who now lives in Canada with the distinctive rythmic beat of reggae. For further information one can consult popular Trinidadian comedian and social historian/thinker Dennis "Sprangalang" Hall

There is also a Trinidadian connection in the origins of hip-hop as well. While Herc, I-Roy and U-Roy were experimenting with the toasting style, the late Lancelot Layne Kebu was developing his own innovations with "rapping" social poetry back in the late 60s. This today is the style of music known as "Rhapso"

I'm not denying that there is an African-American influence in reggae or even calypso and soca; there were very vibrant cross-cultural links as West Indian immigrants moved to the US and vice versa. But to say "origin" is stretching it to say the least.