Freiza VS Z warriors

Could Freiza have defeated all the Z warriors that were on earth immediately after the events on planet Namek if Trunks nor Goku arrived???

Probably

Yes

Doubtful.

None of the Z-fighters, including Vegeta and Piccolo seemed to improve at all to make a drastic difference against Frieza. This could be further supported by both of them, being the two strongest fighters aside from Goku and Trunks at the time, being blown away by the power they felt when Trunks murdered Frieza and the fear they displayed when they sensed Frieza's power.

Yeah, Frieza would have clobbered. And it would have been Goku's fault for messing around and learning that Instant Transmission move,

I made a thread just like this just a bit more elaborated a while ago though x)

I was curious about the same question