A6KB: Yet the Gedolim including Rav Eliashev shlita amongst others, in their great wisdom, called upon klal yisroel to participate in the demonstrations. I think their wisdom and judgment is greater than ours and we can rely upon their calls. Obviously they considered any potential chilul Hahshem aspect, did their utmost to minimize it, and yet feel it is most important to participate in the demonstration to protect Shabbos nevertheless.
Obviously saying tehilim can and should be done in addition to the above.