1piece 3 piece frame

just wanna ask would it be bad things if your frame was 1 piece

im thinking of geting a PB thats has a 1 piece frame (GEM)
i figure if it hits sumfin hard it may snap (falling) and then i would have to replace the whole frame
but with some bikes i see they use 3 piece main sub and rear frame
i reckon they are alot betta and parts could be replace but want to know ppl thoughts

IS 1 piece frame that bad?
both frames using same str steel-alloy

BB

i would recommend you buy either a complete luck7 p / bike or another type bike and use a lucky 7 frame, these frames are the strongest available and have removeble and adjustable rear swing arms.

im currently riding a C1 blata rep
just checking out the euros
and the question brought to mind when looking at them