The resistance was actually a shambles, there were without doubt some good organised groups which you would expect,but the majority weren't well organised and mostly acted out of self benefit or had to be paid to carry out requested tasks, there was in fighting between the different factions for supremacy and betrayals to the Germans to gain that supremacy, there were also many betrayals of our own agents, half of France was in bed with the Germans, so lets say not a very solid resistance, the French navy refused to surrender its ships and join us although they had a rethink when the allied victory was certain, lets say I wouldn't want them watching my back.
You can hardly blame the French Navy for their reluctance, when Germany took over France, the French Navy had strict instructions to sail their ships to allied territory or if it looked like they would be captured then to scuttle their ships. We never gave them a chance, we attacked them. At the time it was said that we didn't know about those orders but subsequently it has been shown that we did.
Yes, there was some in-fighting in the resistance and some collaborators (the resistance killed 2500 of them) but the amount of bad done was insignificant compared to the amount of good. The allied invasion of France would have failed without the resistance. Most of the major groups were a lot more organised than you imply, don't forget this was operating in occupied territory and largely in the most dangerous areas, it was very difficult circumstances. At the end of the day, the resistance saved a lot of allied lives one way or another and not infrequently at the cost of their own. You only have to look a Czechoslovakia to see how the Germans operated, they killed 15,00 people in retaliation to resistance activities.
Over 30,000 allied aircrew that were shot down in France were assisted by the French resistance.
On DDAY, the resistance had effectively disabled the telephone system leaving the Germans in confusion.
Numerous other allied operations were only possible with the extensive cooperation and activities of the resistance.